EP2164234A1 - Portable radio communication apparatus provided with boom portion with through hole - Google Patents

Portable radio communication apparatus provided with boom portion with through hole Download PDF

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Publication number
EP2164234A1
EP2164234A1 EP08157884A EP08157884A EP2164234A1 EP 2164234 A1 EP2164234 A1 EP 2164234A1 EP 08157884 A EP08157884 A EP 08157884A EP 08157884 A EP08157884 A EP 08157884A EP 2164234 A1 EP2164234 A1 EP 2164234A1
Authority
EP
European Patent Office
Prior art keywords
radio communication
communication apparatus
portable radio
preferred
boom portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08157884A
Other languages
German (de)
English (en)
French (fr)
Inventor
Hiroshi c/o Matsushita Electric Industrial Co. Ltd. Iwai
Atsushi c/o Matsushita Electric Industrial Co. Ltd. Yamamoto
Toshihiro c/o Matsushita Electric Industrial Co. Ltd. Asahina
Kenichi c/o Matsushita Electric Industrial Co. Ltd. Yamada
Shinji c/o Matsushita Electric Industrial Co. Ltd. Komeguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Corp of America
Original Assignee
Panasonic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of EP2164234A1 publication Critical patent/EP2164234A1/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/273—Adaptation for carrying or wearing by persons or animals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • H04M1/05—Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast

Definitions

  • a portable radio communication apparatus including a boom portion having both ends connected with a housing of the portable radio communication apparatus and having a central portion located between the both ends.
  • a central portion located between the both ends.
  • at least one through hole is formed between the boom portion and the housing.
  • the boom portion is preferably provided so as to extend on a plane substantially equal to a plane of a bottom surface of the portable radio communication apparatus.
  • the boom portion is preferably made of a dielectric.
  • the boom portion is preferably made of a dielectric which is an elastic resin material.
  • the boom portion is preferably made of a conductor material.
  • the above-mentioned portable radio communication apparatus preferably further includes a reinforcement member formed between the boom portion and the housing. At least one part of an antenna element of the portable radio communication apparatus is provided on one of an interior and a surface of the reinforcement member.
  • a thickness of a connection portion of the strap attachment portion which is connected with the end portion of the housing of the portable radio communication apparatus is preferably larger than a thickness of a portion of the strap attachment portion which is apart from the housing of the portable radio communication apparatus.
  • the boom portion 110 is made of a circular cylindrical dielectric member having a larger length than the width of the portable radio communication apparatus 101, and both ends of the boom portion 110 are each bent so as to be symmetric with respect to a plane passing through the central portion in the longitudinal direction of the boom portion 110.
  • the both ends of the boom portion 110 are coupled with a top surface 103u of the lower housing 103.
  • the top surface 103u is a surface which couples the inner surface 103s, on which the keyboard 107 of the lower housing 103 is provided, with the opposite bottom surface 103t which oppose to the inner surface 103s, and the top surface 103u is located so as to be adjacent to the hinge portion 104.
  • the input impedance of the antenna element 202, the characteristic impedance of the feeding cable 208 and the output impedance of the radio communication circuit 204 are set to a predetermined impedance of, for example, 50 ⁇ .
  • the radio transceiver circuit 205 and the radio receiver circuit 206 are connected with the circulator 207.
  • the first preferred embodiment has been described with reference to an example of forming the antenna element 202 which is a monopole antenna made of a strip conductor of the boom portion 110.
  • the other antenna configuration may be used.
  • portable radio communication apparatuses 101c, 101d, 101e, 101f, 101g and 101h of second to seventh preferred embodiments according to the present invention will be described with reference to Figs. 5 , 6 , 7 , 8 , 9 and 10A and 10B .
  • Fig. 6 is a plan view of the portable radio communication apparatus 101d which employs a helical antenna element 500 with a perspective view showing a concrete configuration example of the portable radio communication apparatus 101d of the third preferred embodiment according to the present invention.
  • the helical antenna element 500 is formed on the interior of the boom portion 110 and an interior of the lower housing 103 by using, for example, a strip conductor, and characterized by including a helical conductor 501 of helical shape on a part of the middle of the strip conductor.
  • One end of the helical antenna element 500 is connected with the radio communication circuit 204 through the feeding point 203 and the feeding cable 208.
  • Fig. 8 is a plan view of the portable radio communication apparatus 10 1f which employs an antenna element 700 including a helical conductor 701 with a perspective view showing a concrete configuration example of the portable radio communication apparatus 101f of the fifth preferred embodiment according to the present invention.
  • the antenna element 700 of the portable radio communication apparatus 101f of the present preferred embodiment is formed by using a strip conductor, and is constituted by including a helical conductor 701 of helical shape for shortening an antenna length, a radiation conductor 702 of a linear conductor bent at three portions, and a feeding conductor 703.
  • the strip conductor of the antenna element 700 has an electric length of about ⁇ /4, where ⁇ is the wavelength of each of the transmitted and received radio signals.
  • a current becomes the largest at the feeding point 203 of the feeding conductor 703, and an electric field is the largest at the open end of the radiation conductor 702.
  • the helical conductor 701 is provided in the vicinity of the feeding point 203 of the antenna element 700 and within the lower housing 103, so that the path length of the flowing current is lengthened by the helical conductor 701, and this leads to that the whole of the antenna element 700 can be made smaller.
  • an electric field radiated from the radiation conductor 702 is stronger than those of the other portions when the antenna element 700 is excited.
  • electromagnetic coupling among the radiation conductor 702, the ground conductor of the lower substrate 705, and a hinge portion is enhanced, so that an image (mirror image) current flows into the ground conductor and the hinge portion (ground conductor) of the lower substrate 705.
  • a hinge portion e.g., the hinge portion 104 shown in Figs. 1A and 1B and made of a conductor
  • an image (mirror image) current flows into the ground conductor and the hinge portion (ground conductor) of the lower substrate 705.
  • a space a through hole 110h shown in Fig. 8
  • the electromagnetic coupling is further enhanced, so that it makes more difficult to radiate a radio wave.
  • the portable radio communication apparatus 101f constituted as described above is provided with the antenna element 700 which includes the helical conductor 701 in the vicinity of the feeding point 203, so that the substantial antenna length of the antenna element 700 can be remarkably reduced.
  • the boom portion 808 is provided so that the housing 802 of the portable radio communication apparatus 801 including the boom portion 808 is bilaterally symmetric as shown in Fig. 11A and so that the boom portion 808 is parallel to the bottom surface 802t of the housing 802 and coupled therewith without any step when seen from the side of the portable radio communication apparatus 801 as shown in Fig. 11B .
  • the present invention is not limited to this, and the antenna element may be arranged in the housing without forming any antenna element in each of the boom portion 110 and 808. Also in this case, it is possible to avoid the conventional disadvantage that the portable radio communication apparatus is caught in his pocket when taking out the portable radio communication apparatus from his pocket.
  • the sub-display 902 is mainly used in such a state that the portable radio communication apparatus 900 is folded to display information such as the present time, a state of the intensity of the received radio signal, the residual quantity of a rechargeable battery and a call message.
  • the portable radio communication apparatus 900 includes the sub-display 902, it is determined which side is the upper side of the portable radio communication apparatus 900 in a folding state according to the direction of characters and pictures displayed on the sub-display 902.
  • the sub-display 902 is arranged so that the hinge portion 104 is located on the lower end when the portable radio communication apparatus 900 is folded, the user can see the characters and pictures displayed on the sub-display 902 in a correct direction when the user suspends the portable radio communication apparatus 900 from his neck and holds the portable radio communication apparatus 900 by his hand by arranging the boom portion 901 on the bottom surface 102d on the opposite side of the hinge portion 104 and corresponding to the end portion of the portable radio communication apparatus 900 as described in the present preferred embodiment.
  • the antenna element may be formed in the boom portion 901 in a manner similar to that of the above-mentioned first to seventh preferred embodiments.
  • Fig. 14A is a plan view showing a configuration example of a straight-type portable radio communication apparatus 801a in a tenth embodiment according to the present invention
  • Fig. 14B is a side view thereof.
  • an antenna element 1101 which is a monopole antenna having a quarter of the wavelength is formed on the inside of the boom portion 110, one end of the antenna element 1101 is connected with a feeding point 203, and another end thereof is an open end.
  • the feeding point 203 is connected with a radio communication circuit 204 through a feeding cable 208.
  • a conductor line 1102 is formed on the inside of the boom portion 110 on the side of the lower housing 103 to be apart from the antenna element 1101 by a predetermined distance and along the antenna element 1101. Both ends of the conductor line 1102 are wound around screws 1103 and 1104, respectively, on the inside of the lower housing 103 in the vicinity of the top surface 103u of the lower housing 103, and fixed to the lower housing 103 by the screws 1103 and 1104.
  • the conductor lines 1102 and 1202 are each formed on the inside of the boom portion 110.
  • the present invention is not limited to this, and a part or the whole of the outer surface of the boom portion 110 may be formed of a conductor material such as a magnesium alloy or a zinc alloy instead of the conductor lines 1102 and 1202.
  • the conductor material can be made to operate as a parasitic element.
  • this conductor material portion may be made to operate as a part of the antenna element 1201 by applying a current thereto. Also in this case, a better antenna radiation pattern can be obtained.
  • Fig. 17A is a plan view showing a part of the concrete configuration of a portable radio communication apparatus 101k of a thirteenth preferred embodiment according to the present invention
  • Fig. 17B is a side view thereof.
  • the portable radio communication apparatus 101k of the present preferred embodiment is different from the portable radio communication apparatus 101 of the first preferred embodiment shown in Figs. 1A and 1B in that a boom portion 1301 located apart from the lower housing 103 is provided to be inclined from the bottom surface 103t of the lower housing 103 so that a central portion 1301a of the boom portion 1301 protrudes from an extension surface of the lower housing 103 from the bottom surface 103t in the direction opposite to the direction toward the hinge portion 104.
  • Figs. 19A and 19B show a configuration example of the portable radio communication apparatus 1011 which does not include other protrusions such as an external antenna or the like.
  • Fig. 20 shows that the lower substrate 201 is provided on the inside of the lower housing 103 and one end of a monopole antenna element 202 formed on the inside of the boom portion 110 and on the inside of the lower housing 103 is connected with the radio communication circuit 204 through the feeding point 203 and the feeding cable 208.
  • the portable radio communication apparatus 1011 constituted as described above, by providing the circular cylindrical reinforcement member 121, the durability of the portable radio communication apparatus 1011 to resist a shock applied to the boom portion 110 can be improved. Therefore, even when the portable radio communication apparatus 1011 is fallen, it is possible to make it more difficult to break down the portable radio communication apparatus 1011.
  • the monopole antenna element 202 is formed on the inside of the boom portion 110.
  • the present invention is not limited to this, and one of the antenna elements of the second to seventh preferred embodiments may be formed.
  • the antenna element may be constituted by forming a conductor material on a part or the whole of the outer surface of the boom portion 110. This leads to that the mechanical strength of the boom portion 110 can be enhanced, and the portable radio communication apparatus 1011 can be made to be less broken down when the portable radio communication apparatus is fallen down to a ground such as a floor.
  • the reinforcement member 122 may be formed of, for example, a conductor material, so that the present reinforcement member 122 operates as a parasitic element during the operation of an antenna element (not shown) formed on the inside of the boom portion 110.
  • the reinforcement members 123 and 124 act as stoppers which prevent the strap attachment member 125 inserted into the through hole 110h11 of the boom portion 110 from laterally moving in the widthwise direction thereof, so that the portable radio communication apparatus 101n can be stably held when the portable radio communication apparatus 101n is suspended from his neck.
  • Fig. 24A is a plan view showing a configuration example of a portable radio communication apparatus 101o of a seventeenth preferred embodiment according to the present invention in a folding state
  • Fig. 24B is a side view thereof.
  • the portable radio communication apparatus 101o of the present preferred embodiment is characterized, as compared with the fourteenth preferred embodiment shown in Figs. 19A and 19B , by including a V-shaped reinforcement member 127 instead of the circular cylindrical reinforcement member 121 made of a dielectric.
  • a V-shaped lower end portion 127a of the reinforcement member 127 is coupled with the central portion 103uc on the top surface 103u of a lower housing 103, and two V-shaped upper end portions 127b and 127c of the reinforcement member 127 are coupled with portions 110ca and 110cb which are in the vicinity of the central portion 110c of the boom portion 110 and which are located on both sides of the central portion 110c, respectively.
  • a through hole formed between the boom portion 110 and the lower housing 103 is divided into a through hole 110h21 located in the central portion in the widthwise direction of the through hole and formed between the reinforcement member 127 and the boom portion 110, and two through holes 110h22 and 110h23 located on both sides of the through hole 110h21.
  • the portable radio communication apparatus 110o of the present preferred embodiment constituted as described above exhibits actions and advantageous effects similar to those of the fourteenth preferred embodiment, and can remarkably improve the sense of beauty thereof.
  • the antenna element 130 can be made to have almost a bilaterally symmetric structure. In this case, when the user holds the portable radio communication apparatus 101p by the hand during a telephone call or the like, it is possible to obtain almost the same antenna characteristic in both cases of the right and left hands.
  • the arched boom portion 131 is provided in the preferred embodiment constituted described above, it is possible to enhance the mechanical strength of the boom portion 131 as compared with the boom portion 110 bent at two portions.
  • the portable radio communication apparatus 101q when the portable radio communication apparatus 101q is held by being suspended from his neck, the portable radio communication apparatus 101q can be suspended in a well-balanced manner, and the sense of beauty thereof can be further improved.
  • the present preferred embodiment the case of not using any reinforcement member has been described.
  • the present invention is not limited to this.
  • One or more reinforcement members of the fourteenth to eighteenth preferred embodiments may be further provided in the portable radio communication apparatus 101q of the present preferred embodiment, so that the mechanical strength can be further enhanced.
  • the configuration example of the portable radio communication apparatus 101t in which the boom portion 141 is coupled with the lower housing 103 by the screw portions 142a and 142b has been described.
  • the present invention is not limited to this, and various coupling means may be used to couple the boom portion 141 with the lower housing 103.
  • the case of not using any reinforcement member has been described.
  • the present invention is not limited to this.
  • the portable radio communication apparatus 101t may include one or more reinforcement members described above, so that the mechanical strength of the portable radio communication apparatus 101t can be further enhanced.
  • the detachable boom portion 141 of the present preferred embodiment may be applied to any of the portable radio communication apparatuses of the first to twenty-first preferred embodiments.
  • the configuration examples of the folding-type portable radio communication apparatuses have been described.
  • the boom portion or strap attachment portion described in each of the preferred embodiments may be formed on a straight-type portable radio communication apparatus.
  • the resonance frequency of the antenna element can be lowered, and this leads to that the portable radio communication apparatus can be made smaller in size.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Telephone Set Structure (AREA)
  • Support Of Aerials (AREA)
  • Transceivers (AREA)
  • Structure Of Receivers (AREA)
EP08157884A 2002-07-31 2003-07-31 Portable radio communication apparatus provided with boom portion with through hole Withdrawn EP2164234A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002222785 2002-07-31
JP2003018752 2003-01-28
EP03017351A EP1388910B1 (en) 2002-07-31 2003-07-31 Portable radio communication apparatus provided with boom portion with through hole

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP03017351.2 Division 2003-07-31
EP03017351A Division EP1388910B1 (en) 2002-07-31 2003-07-31 Portable radio communication apparatus provided with boom portion with through hole

Publications (1)

Publication Number Publication Date
EP2164234A1 true EP2164234A1 (en) 2010-03-17

Family

ID=30447666

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08157884A Withdrawn EP2164234A1 (en) 2002-07-31 2003-07-31 Portable radio communication apparatus provided with boom portion with through hole
EP03017351A Expired - Lifetime EP1388910B1 (en) 2002-07-31 2003-07-31 Portable radio communication apparatus provided with boom portion with through hole

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03017351A Expired - Lifetime EP1388910B1 (en) 2002-07-31 2003-07-31 Portable radio communication apparatus provided with boom portion with through hole

Country Status (5)

Country Link
US (1) US7457650B2 (zh)
EP (2) EP2164234A1 (zh)
KR (1) KR100998409B1 (zh)
CN (1) CN1479408B (zh)
DE (1) DE60324068D1 (zh)

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EP1388910A3 (en) 2004-03-03
US20050075082A1 (en) 2005-04-07
KR100998409B1 (ko) 2010-12-03
EP1388910A2 (en) 2004-02-11
KR20040016386A (ko) 2004-02-21
CN1479408A (zh) 2004-03-03
EP1388910B1 (en) 2008-10-15
US7457650B2 (en) 2008-11-25
CN1479408B (zh) 2012-06-27
DE60324068D1 (de) 2008-11-27

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